Description

3H-Pyrazol-3-One, 1,2-Dihydro-4-(2-Hydroxyethyl)-1,5-Dimethyl- is a versatile heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its functionalized pyrazolone structure, which serves as a key precursor for developing novel compounds with targeted biological and material properties. This intermediate is particularly valuable for research and development chemists in the pharmaceutical and agrochemical industries seeking to create new active ingredients.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting new therapeutic agents.
• Agrochemical Synthesis: Used in the research and development of next-generation pesticides, herbicides, and plant growth regulators.
• Organic Synthesis Reagent: Serves as a versatile precursor for constructing complex heterocyclic frameworks in academic and industrial research laboratories.
• Material Science Research: Investigated as a monomer or functional additive in the development of specialty polymers and advanced materials.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in chemical manufacturing.

Basic Information

Product Name	3H-Pyrazol-3-One, 1,2-Dihydro-4-(2-Hydroxyethyl)-1,5-Dimethyl-
CAS No.	258281-03-7
Molecular Formula	C7H12N2O2
Molecular Weight	156.18 g/mol
Synonyms	4-(2-Hydroxyethyl)-1,5-dimethyl-1,2-dihydro-3H-pyrazol-3-one; 1,5-Dimethyl-4-(2-hydroxyethyl)-2-pyrazolin-3-one; 1,2-Dihydro-4-(2-hydroxyethyl)-1,5-dimethyl-3H-pyrazol-3-one; 4-(2-Hydroxyethyl)-1,5-dimethylpyrazol-3(2H)-one; 1,5-Dimethyl-4-(2-hydroxyethyl)pyrazol-3-one; 3H-Pyrazol-3-one, 1,2-dihydro-4-(2-hydroxyethyl)-1,5-dimethyl-
EINECS	Contact for details

Quality Control

Our 3H-Pyrazol-3-One, 1,2-Dihydro-4-(2-Hydroxyethyl)-1,5-Dimethyl- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity (typically ≥95% by HPLC), physical characteristics, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.